add version note

Author: jmckenna

en/utilities/sym2img.txt

@@ -8,9 +8,10 @@
 *****************************************************************************
 
 .. warning::
-    This utility should be removed from the MapServer codebase, as it has 
-    not worked since year 2003, it is based on the GD library which was 
-    removed from MapServer, and no packages distribute the utility.
+    This utility was removed from the MapServer codebase as of the 8.2.0 release 
+    for several reasons: it has not worked since year 2003, it is based on the 
+    GD library which was removed from MapServer, and no packages distribute 
+    the utility.
 
 Purpose
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